Event: Division 1

Opponent Rating Result
Cian Ward 2043 1 - 0
Arnaud Malet 1868 0 - 1
Chris B Baker 1963 ½ - ½
Susan K Lalic 2271 0 - 1
performance = (sum(opponents ratings) + 400(wins-losses)) / games

1936 = (8145 + 400 * (1 - 2)) / 4)

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